Boiler.



No; 633,853. Patented Sept. 26, I899.

G. KINGSLEY. I

BOILER.

(Application filed an. as, 1899.) (Io Nodal.)

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INVENQTOR ATTORNEYS.

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' UNITED. STATES PATENT OFFICE.

- GEORGE KINGSLEY, OF MONTREAL, CANADA.

BOILER.

SPECIFICATION forming part of Letters Patent No. 633,853, dated September 26, 1899.

Application filed January as, 1399; s mi to. 703,698. on; model.)

To ML whom it, may concern.-

Be it known that I, GEORGE KINGSLEY, a citizenof the United States, residing in Montreal, Province of Quebec, andDorninion'of 'Canada, have invented anew and Improved and parts and combinations of the same, as

will be fully described hereinafter and then pointed out in the claims.

A practical embodiment of my invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate cor: responding parts in all the views.

Figure 1 is a longitudinal sectional elevation of the improvement on'the line ljl'in Fig. 2. Fig. 2 is a transverse section of the same on the line 2 2 in Fig. 1. Fig. 3 is asectionalplan view of part of the improvement on the line 3 3-in Fig. 1. Fig. iv-is an en-' larged' side elevation of a side water-tube, part being in section; and Fig. 5 is. a plan view of part of the crown-sheet with the supporting-stays removed. v

, The improved boiler is provided with an outer sheltA, and an inner shell B, arranged similarly to the boiler shown and described in the Letters Patent of the United States, No.

390,235,,granted tome on October 2, 1888. 7,

The inner shell vl3 has a longitudinally-extending crown-sheet B, supported by stayboltsG from the curved top of the outer shell A, and stay-bolts C are preferably used to connect the sides and curved bottoms'of the outer and inner shells with each other, as isv plainly indicated in the drawings.

In the inner shellB is arranged a horizoi tally-disposed partition D, preferably of fire brick,supported on suitable transverse an gleirons E, supported at their ends on longitudinal L-shaped rails E, attached tothe side Fig. 2. The partition 1) extends from the front end-of the boiler to within a short distance of the rear end thereof to form lower and upper compartments F F, connected with 7 each other at the rear end of the boiler byan opening F, left between the end of the parti tion'D and the rear end of theboiler.

In the forward portion of the lower compartment F is arrangeda fire-box G, having the usual grate on which is burned suitable fuel, and in the rear of the grate extends a bridge-wall H, made of transverse pipes se cured to the side walls of the inner shell to establish communication between the water compartment and the sides of the boiler.

The forward end of the upper compartment F connects with a smoke-box I, opening at its top into a smoke-stack .l for carrying off the smoke and gases. vided at its entrance-opening with a deflector I, located at the middle of the forward end of the compartment F, below. the stack J ,so that the gases are deflected to the sides of the smoke-box before passing up into the same and to the stack J. By this arrangement the smoke and gases are more evenly distributed in the upper compartment F and somewhat retarded therein to insurea full utilization of the heat.

From the side walls of the inner shell B,Within the lower compartment F, extend horizontally the water-tubes K, preferably made conica-lnnd closed at their inner ends, as is plainly shown in Fig. 4,.the outer or larger ends being formed with external screw-threads K for screwing in the threaded side walls of the inner shell B. I

It is evident that by having the water-tubes K'made conical the steam generated in the tubes'K 1-ises to the upper wall, and as the wall isinclined the steam travels along the said wall to finally pass into the water-comfrom from timeto time through suital'ile manholes in the ends of the boiler.

, From the crown-sheet B in the upper compartment vF depend water-tubes L, prefer- The smoke-box I is pro- I ably made cylindrical in shape and terminating a suitable distance above the horizontal partition D. On said partition D are arranged transverse deflectors N in the space between the top surface of the partition and the lower ends of the tubes L, so that the heat passing up into the upper compartment F is deflected in an upward direction by said partitions and among the tubes L to insure a proper heating of the water contained therein. It is evident that as the water is heated in the tubes it readily rises in the same, and consequently a proper circulation is established.

In order to permit of properly cleaning the boiler, I provide the rear end with large doors .P P for giving access to the inner shell and to the two compartments F F to remove any cinders or other matter accumulating in the bottom of the rear portion of the compartment, as well as matter accumulating on the top of the partition D, and to allow of cleaning the several tubes K and L with suitable brushes.

The front of the boiler is provided with the usual fire-door P for giving access to the firebox to introduce the desired fue-Land a door P leads to the ash-pit. A door P above the fire-door P gives access to the tubes K in the fire-box portion of the boiler to permit of cleaning the said tubes whenever desired. By this arrangement of doors complete access is had to the several parts of the inner shell, and access is had by a suitable manhole Q to the steam-compartment of the boiler, as will be readily understood by reference to Fig. 1.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent 1. A boiler, comprising an inner and an outer shell for forming a water and steam compartment between the shells, a horizontal partition in the innershelland extending from the front end thereof to within a distance of the rear end, to form upper and lower flamecompartments connected with each other at their rear ends, a fire-box in the front end of the lower compartment, horizontal conical water-tubes projecting from the sides of the inner shell into the lower compartment, said tubes having their inner ends closed and their outer ends communicating with the steam and water space, and water-tubes depending from the crown-sheet in the upper flame-compartment, substantially as shown and described.

2. A boiler, comprising an inner and an outer shell for forming a water and steam compartment between the shells, a horizontal partitionin theinuershelland extending from the front end thereof to within a distance of the rear end, to form upper and lower flamecompartments connected with each other at their rear ends, a fire-box in the front end of the lower compartment, horizontal conical water-tubes projecting from the sides of the inner shell into the lower compartment, said tubes having their inner ends closed and their outer ends communicating with the steam and water space, and water-tubes depending from the crown-sheet in the upper flame-compartment, said depending tubes terminating above the said partition, substantially as shown and described.

3. A boiler, comprising an inner and an outer shell for forming a water and steam compartment between the shells, a horizontal partitionin theinnershelland extending from the front end thereof to within a distance of the rear end, to form upper and lower flamecompartments connected with each other at their rear ends, a fire-box in the front end of the lower compartment, horizontal watertubes projecting from the sides of the inner shell into the lower compartments, watertubes depending from the crown-sheet in the upper flame-compartment, said depending tubes terminating above the said partition, and a transverse deflector on the top of the partition between the latter and the lower ends of the depending tubes, substantially as described.

4. A boiler, comprising an inner and an outer shell for forming a water and steam compartment between the shells, a horizontal partitionin theinnershelland extendingfrom the front end thereof to within a distance of the rear end, to formupper and lower flamecompartments connected with each other at their rear ends, a fire-box in the front end of the lower compartment, horizontal Watertubes projecting from the sides of the inner shell into the lower compartments, Watertubes depending from the crown-sheet in the upper flame-compartment, and a smoke-box into which opens the front end of the upper compartment, the said box having a transverse deflector at the middle of the entranceopening, substantially as shown and described.

o. A boiler, comprising an inner and an outer shell spaced from each other and forming a water and steam compartment, a horizontal partition terminating short of the rear end of the boiler and forming upper and lower flame-compartments connected with each other at their rear ends, a fire-box in front end of thelowercompartment, a bridgewall formed of transverse pipes having their ends communicating with the steam and water chamber, horizontal water-tubes projecting from each side of the inner sheet, the inner ends of the said tubes being closed and their outer ends communicating wit-h the steam and water chamber, water-tubes depending from the crown-sheet of the inner shell and terminating short of the partition, and deflectors between the partition and the lower ends of the depending tubes, substantially as described.

GEORGE KINGSLEY.

Witnesses:

W. lVIOLAREN, N. HENDERSON.

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